Since China has a vast forest area and most of them are in no-man's land, most of them have no communication and power supply systems. During the construction of the forest fire prevention video surveillance system, the investment in transmission, power supply system and engineering infrastructure construction accounted for a very high proportion. Under the premise of fully guaranteeing the monitoring coverage, the use of large radius video surveillance equipment will reduce construction investment costs. And later operating and maintenance costs. At the same time, it can also take into consideration the application of wireless communication equipment, UAV relay equipment, and meteorological equipment, and improve the operational safety and intelligence of the monitoring station so as to improve the overall use efficiency of the system.

       In addition to video surveillance, forest defense work has been actively carried out throughout the country, and intelligent security equipment has opened the way for forest protection.

1 Radar positioning

       In the forest fire monitoring system, the existing mature long-distance video surveillance and radar target automatic tracking technology are automatically synchronized and synchronized with the radar target information through the video surveillance system, realizing the digitization, intelligence and networking of the radar remote detection and optical equipment. , to inject new blood for wide-area video surveillance applications.

2 Wireless emergency command system

       The forest fire monitoring and command system is to conduct fire monitoring on large-area forest areas. After discovering a fire situation, it can keep in touch with the command center and implement fire-fighting measures and command work. The National Development and Reform Commission and the State Forestry Administration's "Mid-term and Long-term Development Plan for Forest Fire Prevention" has very high and explicit requirements for the emergency command of forest fire prevention. It clearly puts forward the requirements for the construction of emergency communication systems: "Integrated application of wireless short-wave, ultra-short wave, cable, satellite Various means such as the establishment of a sound communication network based on fixed, based on vehicle, mechanical, mobile communication equipment as a support, supplemented by portable application communication system, to ensure the fire field command communication is a reliable guarantee.Wireless communication focus on solving key areas From forest farms, forest farms to observation towers and checkpoints to the fire network, the communication network is unblocked; the information and command system focuses on building the information system infrastructure network, command information control system, and emergency command system from the country to the province and even to the city (city).”

3 drone fire protection, pest control

       Recently, the first batch of new fire-resistant drones was distributed to the armed police force Hulun Buir Forest Forces in Inner Mongolia. These drones are equipped with integrated ground station systems and are suitable for terrains such as jungles, mountains, oceans and deserts. They mainly include fire monitoring and fire field exploration. Topographic mapping, weather forecasting, GPS positioning, data transmission, and other functions are more conducive to the forest forces officers and soldiers in the implementation of forestry protection, patrolling, forest fire fighting and other critical tasks.

       In addition to fire prevention, there is an important task for forest forest protection is pest control. In addition to daily video surveillance methods, drones are used to spray pesticides when pesticides are sprayed. The forestry department used artificial physics, biology, and other non-pollution measures to prevent and control the harm and spread of harmful organisms such as American moths and Yangsaurus moths.

       In other respects, the forestry department also protects forest resources through legal means, strictly prohibits stealing and cutting forests, strictly enforces the wood transportation permit system, strictly controls timber circulation, and trees that are illegally felled cannot enter the market. At the same time, crack down on the illegal and criminal activities that destroy forests and wildlife resources, and protect forest greening achievements from being infringed.

New product, new technology sharing

       Now introduce some of the more advanced products and technologies currently in the domestic industry:

       Spherical turntable: The working environment of front-end equipment for forest fire protection video surveillance system is similar to that of border defense and coastal defense work environment. The monitoring and control technical requirements of the border defense and maritime defense system must meet the requirements for identifying the positioning accuracy and wind resistance of vehicles and people when applying the monitoring radius of more than 3 kilometers in the field. The regulation should adopt ball type turntable equipment. Because the wind load coefficients in any direction of the spherical structure are basically equal, it is least affected by the wind force in all directions, and it is stronger than the common cloud table structure in the same wind environment. At the same time, the ball-type turntable adopts a high-precision servo control system, which has a faster rotation speed and higher positioning accuracy than PTZ. Therefore, it is suggested that the forest fire monitoring video surveillance front-end equipment can refer to the military product design concept and enhance the overall application capability of the technology.

       Algorithm Preposition: The intelligent image recognition algorithm combined with a high-precision ball turntable is the key to ensuring accurate identification and precise positioning of the fire. The front-end equipment adopts the embedded recognition algorithm. During the operation of the recognition algorithm, the system does not need to be compressed and transmitted, and the quality is not destructive, which can greatly improve the recognition capability. In the case of limited bandwidth or interruption of network transmission, it can still operate normally in the local area and monitor the fire, and store the fire alarm information in the front end at the same time. In addition, the device uses embedded hardware design, which simplifies the hardware system for fire identification and makes the structure more compact and more stable. Because front-end embedded algorithm design requires very high R&D technical capabilities of manufacturers, only a very few manufacturers in the industry have completed this breakthrough. Throughout the development of technology, the pre-algorithm is the key to solve the accuracy of fireworks recognition, and it is also the only way for the intelligentization of video surveillance for forest fire prevention.

       Standardized design: At present, the construction of forest fire prevention video surveillance throughout the country is mostly grass-roots and does not realize the networking of county-to-city, city-to-provincial and other multi-level systems. The standardization, openness, and compatibility design of the front-end hardware are the preconditions for the networking of the video surveillance system, and also the basic guarantee for unified command and unified dispatch of forest fire prevention.